Royce Husted’s “power-driven ski,” patented in 1976, adds a motor-driven belt to conventional skis to create, in effect, a standing snowmobile:

Applicant’s invention provides the skier on the one hand with some of the challenges, such as holding balance, etc., of downhill skiiing without the dependency on hilly terrain and ski lifts, and on the other hand it is much less cumbersome to use, to transport and to store than the snowmobile, and less expensive to produce and maintain.

This would make February commutes so much easier …